<template>
  <div>
    <!-- 面包屑导航区 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
        <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
        <el-breadcrumb-item>用户管理</el-breadcrumb-item>
        <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片展示区 -->
    <el-card >
        <!-- 搜索区 -->
        <el-row :gutter="20">
            <el-col :span="8">
                <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
                <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
                </el-input>
            </el-col>

            <el-col :span="4">
                <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
            </el-col>
        </el-row>

        <!-- 数据展示区 -->
        <el-table :data="userlist" border stripe>
            <el-table-column type="index" label="#"></el-table-column>
            <el-table-column prop="username" label="姓名"></el-table-column>
            <el-table-column prop="email" label="邮箱"></el-table-column>
            <el-table-column prop="mobile" label="电话"></el-table-column>
            <el-table-column prop="role_name" label="角色"></el-table-column>

            <el-table-column label="状态">
                <template slot-scope="scope">
                    <el-switch v-model="scope.row.mg_state" @change="userStateChange(scope.row)"></el-switch>
                </template>
            </el-table-column>

            <el-table-column  label="操作" width="180px">
                 <template slot-scope="scope">
                    <!-- 修改按钮 -->
                    <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
                    <!-- 删除按钮 -->
                    <el-button type="danger" icon="el-icon-delete" size="mini" @click="removueUserBuID(scope.row.id)"></el-button>
                    <!-- 分配角色按钮 -->
                    <el-tooltip  effect="dark" content="分配角色" placement="top" :enterable="false">
                         <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
                    </el-tooltip>

                </template>
            </el-table-column>
        </el-table>

        <!-- 分页区域 -->
         <!-- 每页显示数据改变 当前页数改变 数据源 每页显示最大数据量 第几页 功能 总数居量-->
        <el-pagination
            @size-change="handleSizeChange"
            @current-change="handleCurrentChange"
            :current-page="queryInfo.pagenum"
            :page-sizes="[1, 2, 5, 10]"
            :page-size="queryInfo.pagesize"
            layout="total, sizes, prev, pager, next, jumper"
            :total="total">
        </el-pagination>

    </el-card>


    <!-- 添加用户  对话框区域 -->
    <el-dialog
        title="添加用户"
        :visible.sync="addDialogVisible"
        width="50%"
        @close="addDialogClosed"
    >
        <!-- 内容主体区域 -->
        <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
            <el-form-item label="用户名" prop="username">
                <el-input v-model="addForm.username"></el-input>
            </el-form-item>

            <el-form-item label="密码" prop="password">
                <el-input v-model="addForm.password" type="password"></el-input>
            </el-form-item>

            <el-form-item label="邮箱" prop="email">
                <el-input v-model="addForm.email"></el-input>
            </el-form-item>

            <el-form-item label="手机" prop="mobile">
                <el-input v-model="addForm.mobile"></el-input>
            </el-form-item>
        </el-form>


        <!-- 内容底部区域 -->
        <span slot="footer" class="dialog-footer">
            <el-button @click="addDialogVisible = false">取 消</el-button>
            <el-button type="primary" @click="addUsers">确 定</el-button>
        </span>
    </el-dialog>
    <!-- 修改用户  对话框区域 -->
    <el-dialog
        title="修改用户"
        :visible.sync="editDialogVisble"
        width="50%"
        @close="editDialogClosed"
    >
        <el-form  :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="80px">
            <el-form-item label="用户昵称">
                <el-input v-model="editForm.username" :disabled="true"></el-input>
            </el-form-item>
            <el-form-item label="用户邮箱" prop="email">
                <el-input v-model="editForm.email"></el-input>
            </el-form-item>
            <el-form-item label="用户电话" prop="mobile">
                <el-input v-model="editForm.mobile"></el-input>
            </el-form-item>
        </el-form>


        <span slot="footer" class="dialog-footer">
            <el-button @click="editDialogVisble = false">取 消</el-button>
            <el-button type="primary" @click="editUserInfo">确 定</el-button>
        </span>
    </el-dialog>
    <!-- 修改用户权限  对话框区域 -->
    <el-dialog
        title="修改用户权限"
        :visible.sync="setRoleDialogVisble"
        width="50%"
        @close="setRoleDialogClosed"
    >
        <div>
            <p>当前的用户==>{{userInfo.username}}</p>
            <p>当前的角色==>{{userInfo.role_name}}</p>
            <p>分配新角色：
                <el-select v-model="selectedRoleId" placeholder="请选择">
                    <!-- label是显示在界面上的 value是提交给服务器的值 -->
                    <el-option v-for="item in roleList" :key="item.id" :label="item.roleName" :value="item.id"></el-option>
                </el-select>
            </p>
        </div>

        <span slot="footer" class="dialog-footer">
            <el-button @click="setRoleDialogVisble = false">取 消</el-button>
            <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
        </span>
    </el-dialog>

  </div>
</template>

<script>
export default {
    created(){
        this.getUserList();
    },
    data() {
        //验证邮箱的规则
        var checkEmail= (rule, value, callback)=>{
            //验证邮箱的正则表达式
            const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
            if (regEmail.test(value)) {
                return callback()
            }
            return callback(new Error('请输入合法的邮箱'))
        }
        //验证手机号的规则
        var checkPhone= (rule, value, callback)=>{
            const regPhone = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
             if (regPhone.test(value)) {
                return callback()
            }
            return callback(new Error('请输入合法的手机号'))
        }
        return {
            //获取用户列表的参数对象
            queryInfo:{
                query:'',
                // 当前页数
                pagenum:1,
                // 每页显示多少条数据
                pagesize:2
            },
            userlist:[],
            total:0,
            // 控制 用户添加对话款的啊显示和隐藏
            addDialogVisible:false,
            //添加表单信息
            addForm:{
                username:'',
                password:'',
                email:'',
                mobile:''
            },
            addFormRules:{
                username:[
                    {required: true , message:'请输入用户名！',trigger:'blur'},
                    {min:3,max:10,message:'用户名的长度在3到10字符之间',trigger:'blur'}
                ],
                password:[
                    {required: true , message:'请输入用密码！',trigger:'blur'},
                    {min:6,max:15,message:'用户名的长度在6到15字符之间',trigger:'blur'}
                ],
                email:[
                    {required: true , message:'请输入用邮箱！',trigger:'blur'},
                    {validator:checkEmail, trigger:'blur'}
                ],
                mobile:[
                    {required: true , message:'请输入用手机！',trigger:'blur'},
                    {validator:checkPhone, trigger:'blur'}
                ]
            },
            //显示和隐藏 修改对话框
            editDialogVisble:false,
            //根据id查询到的用户信息对象
            editForm:{},
            editFormRules:{
                email:[
                    {required: true , message:'请输入用邮箱！',trigger:'blur'},
                    {validator:checkEmail, trigger:'blur'}
                ],
                mobile:[
                    {required: true , message:'请输入用手机！',trigger:'blur'},
                    {validator:checkPhone, trigger:'blur'}
                ]
            },
            setRoleDialogVisble:false,
            //需要被分配用户角色的信息
            userInfo:{},
            roleList:[],
            selectedRoleId:''
        }
    },
    methods:{
        getUserList(){
            this.$http.get('users',{params:this.queryInfo})
            .then(res => {
                this.userlist = res.data.data.users
                this.total = res.data.data.total
            })
            .catch(err => {
                return this.$message.error('获取用户列表失败！')
            })
        },
        //监听pagesize 改变事件
        handleSizeChange(newSize){
            this.queryInfo.pagesize = newSize;
            this.getUserList();
            // console.log(newSize);
        },
        handleCurrentChange(newPage){
            // console.log(newPage);
            this.queryInfo.pagenum = newPage
            this.getUserList();
        },
        userStateChange(userInfo){
            // console.log(userInfo);
            this.$http.put(`users/${userInfo.id}/state/${userInfo.mg_state}`)
            .then(res => {
                this.$message.success('更新用户状态成功')
            })
            .catch(err => {
                userInfo.mg_state = !userInfo.mg_state
                this.$message.error('获取用户列表失败！')
                console.log(err);
            })
        },
        //对话框的关闭事件
        addDialogClosed(){
            this.$refs.addFormRef.resetFields()
        },
        addUsers(){
            this.$refs.addFormRef.validate(async valid=>{
                if (!valid) {
                    return
                }
                const {data:res} = await this.$http.post('users',this.addForm)
                if (res.meta.status!=201) {
                    this.$message.error('添加用户失败')
                }
                this.$message.success('添加用户成功！')
                this.addDialogVisible = false
                this.getUserList()
            })
        },
        //展示修改用户的对话框
        async showEditDialog(id){
            const {data:res} = await this.$http.get(`users/${id}`)
            if (res.meta.status!==200) {
                return this.$message.error('查询用户信息失败')
            }
            this.editForm = res.data
            console.log(this.editForm);
            this.editDialogVisble=true

            // console.log(id);
        },
        editDialogClosed(){
            this.$refs.editFormRef.resetFields()
        },
        //修改用户信息并提交
        editUserInfo(){
            this.$refs.editFormRef.validate(async valid=>{
                if (!valid) {
                    return
                }
                const {data:res} = await this.$http.put('users/'+this.editForm.id,{
                    email:this.editForm.email,
                    mobile:this.editForm.mobile
                })
                if (res.meta.status!==200) {
                    return this.$message.error('更改用户失败')
                }
                this.editDialogVisble = false
                this.getUserList()
                this.$message.success('添加用户成功！')
            })

        },
        async removueUserBuID(id){
            // console.log(id);
            const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '删除用户', {
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning'
            }).catch(err => err);

            if (confirmResult!=='confirm') {return this.$message.info('已取消删除！')}
            // console.log('确认了删除')
            const {data:res} = await this.$http.delete('users/'+id)
            if (res.meta.status !== 200) {return this.$message.error('删除请求失败！')}
            this.$message.success('删除成功！')
            this.getUserList()

        },
        //展示分配用户权限
        async setRole(userInfo){
            this.userInfo = userInfo

            //展示角色之前，显示所有的角色列表
            const {data:res} = await this.$http.get('roles')
            if(res.meta.status!==200)return this.$message.error('请求roles失败！')
            this.roleList = res.data
            this.setRoleDialogVisble = true
        },
        //点击按钮分配角色
        async saveRoleInfo(){
            if (!this.selectedRoleId) {
                return this.$message.error('没有选择要分配角色')
            }
            const {data:res} = await this.$http.put(`users/${this.userInfo.id}/role`,{rid:this.selectedRoleId})
            if(res.meta.status!==200) return this.$message.error('更新用户角色权限失败！')
            this.$message.success('更新用户角色权限成功！')
            this.getUserList()
            this.setRoleDialogVisble = false
        },
        setRoleDialogClosed(){
            this.selectedRoleId = ''
            this.userInfo = []
        }
    }
}
</script>

<style lang="less" scoped>

</style>